SaxLab Manual

Transcription

SaxLab Manual

user
manual
Copyright LinPlug Virtual Instruments GmbH 2004-2014.
All rights reserved.
Welcome
Thank you for purchasing a LinPlug SaxLab 2 license.
SaxLab 2 is a professional, flexible and easy-to-use virtual wind instrument
designed for creating music on your computer.
SaxLab 2 uses multi-sample playback of wind-instrument samples and
incorporates a specially designed four-voice crossfade system that is capable
of creating highly realistic wind instrument sounds. SaxLab 2’s key features
include an easy-to-use interface, a wide range of high-quality samples, an
effects section that includes chorus and reverb, as well as extensive real-time
modulation options. Special attention has been paid to making the
performance controls as rich and responsive as possible, so that the
instrument can be realistically “played”.
This manual describes all aspects of SaxLab 2 and is designed so that your
use of this software is as efficient and enjoyable as possible. At LinPlug we're
very proud of SaxLab 2; it's the result of many years of research and
synthesizer programming experience. We hope you get a lot of pleasure using
SaxLab and that it becomes an integral part of your music-making.
Peter Linsener and the LinPlug team, January 2014
Concept by
Luigi Felici and Peter Linsener
Instrument by
Luigi Felici, Peter Linsener and Pavol Markovič
Graphics by
Shaun Ellwood and Branislav Pakić
Sounds by
Luigi Felici
Manual by
Chris Share
Special Thanks to Wellington and William
All technical specifications of the product specified in this manual may be subject to change
without notice. The document may not be changed, especially copyright notices may not be
removed or changed. LinPlug and all LinPlug product names are trademarks of LinPlug
Virtual Instruments GmbH. Mac and the Mac logo are trademarks of Apple Computer, Inc.,
registered in the U.S. and other countries. The Built for Mac OS X graphic is a trademark of
Apple Computer, Inc., used under license. The Audio Units logo and the Audio Units symbol
are trademarks of Apple Computer, Inc. Microsoft® and Windows® are trademarks of
Microsoft Corporation, registered in the U.S. and other countries. Cubase and VST are
registered trademarks of Steinberg Media Technologies GmbH. All other trademarks are the
property of their respective owners.
Table of Contents
Installation.......................................................................................................... 4
Features............................................................................................................. 5
Overview............................................................................................................ 6
Main................................................................................................................... 8
Body................................................................................................................. 10
Tune................................................................................................................. 11
Presets............................................................................................................. 12
ECS..................................................................................................................14
Amplitude Envelope......................................................................................... 15
Performance.................................................................................................... 17
LFO.................................................................................................................. 25
Deviation.......................................................................................................... 27
Effects.............................................................................................................. 28
Chorus.......................................................................................................... 29
Reverb.......................................................................................................... 29
Rear Panel....................................................................................................... 30
Registration...................................................................................................... 31
Support.............................................................................................................31
Glossary........................................................................................................... 32
MIDI Implementation Chart.............................................................................. 34
Appendix A: Using TUN Files.......................................................................... 35
Installation
Installation on PC
SaxLab 2 comes with its own Installer. After downloading SaxLab 2 you will
find a file named "SaxLabInstallerNNN.exe" (where NNN is the respective
version number) located in your web browser’s download folder. Double-click
on this program to begin the installation process. The Installer will guide you
through the installation process.
Make sure you choose the right installation directory, so your host software
finds the SaxLab 2 VSTi. Refer to your host software's manual if you are
unsure about where the host software plug-in directory is located.
The instrument file "SaxLab2.DLL" and all of SaxLabs sound data will be
placed in the chosen directory. The next time you start your host software
SaxLab 2 will be listed in the VST Instrument list.
Installation on Mac
SaxLab 2 comes with its own Installer. After downloading SaxLab 2 you will
find a file named "SaxLabInstaller200.dmg" located in your web browser’s
download folder. Double-click this file to decompress and open the image,
then double-click the installer program to begin the installation process.
The installer will guide you through the installation process. The instrument
file "SaxLab" and the SaxLab 2 Presets will now be placed in the appropriate
directory for virtual instruments on your Mac. The next time you start your host
software SaxLab 2 will be listed in the AU and VST instrument list.
Common to Mac and PC
Once SaxLab 2 is installed it must be registered using your personal serial
number. This registration process is described in the Registration section of
this manual.
If you have any questions regarding the installation of SaxLab 2 please
contact our support team at www.linplug.com/support/support.htm.
SaxLab 2.1.6 User Manual
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Features
SaxLab 2 contains a range of features designed to make your music-making
more efficient and enjoyable. These features are listed below:
§
Monophonic multi-sample playback with internal four-voice
crossfade.
§
An adjustable mix of three sound layers for each note: the “Air”
layer, the “Keys” layer and the “Pitched” layer.
§
Air/Keys and Pitched sound layer crossfade point is set by MIDI
velocity.
§
Many different SoundSets for various wind instruments.
§
User-definable, velocity-sensitive amplitude envelope.
§
Tonal characteristics of the instrument’s overall sound can be
defined by the user.
§
Real-time control of the instrument’s brightness, reverberation
amount and “Growl” effect.
§
Three modes of mono performance: Legato, Retrigger, Alternate
§
Control of Pitch Bend and Scoop.
§
Random pitch deviation per note.
§
Random “air” deviation per note.
§
Random body frequency deviation per note.
§
Envelope, LFO and MIDI-controlled vibrato and tremolo.
§
Stereo chorus and stereo reverb effects.
§
Microtuning support.
§
MIDI control available for every instrument parameter.
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Overview
SaxLab 2 is a monophonic wind instrument synthesizer with some unique
features. The synthesizer is based upon a multi-sample-playback design and
includes a three-layered, four-voice crossfade for each note produced.
The structure of SaxLab 2 synthesizer can be divided into nine sections:
Tune, Preset, Envelope, Body, Main, Performance, LFO, Deviation and FX
(Effects).
Audio signals are generated by a sample-playback synthesizer that gets
pitch ,velocity and controller information from the instrument's MIDI input. The
MIDI input is automatically connected to MIDI output of the host software.
SaxLab 2 receives MIDI on all channels simultaneously.
SaxLab2’s Sound Set determines the samples that are used by the
instrument. The Sound Set is selected in the Sound Set popup menu located
in the Main section. The particular scale tuning used by the SoundSet is set in
the instrument’s Tune section, along with its overall tuning settings.
In SaxLab 2, a note consists of three layers: the Main layer, the Keys layer
and the Air layer. The Main layer contains the pitched component of the
sound. The Keys layer contains the characteristic key “clicks” heard in some
wind instruments (especially in saxophones and clarinets ). The Air layer
contains the breath and “airflow” sounds that are an important part of the
sound of a wind instrument.
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The relative levels of the three layers are set using controls in the instrument’s
Main section. The relative levels of the three layers also respond to MIDI note
velocity. For example, when playing soft notes, the volume level of the Air and
Keys layers increases with respect to the Main layer. This replicates the
behaviour of a real wind instrument which becomes relatively “noisier” as it is
played more quietly. When playing louder notes the Main layer becomes
proportionately louder and comes to dominate the sound.
The Main layer of each SaxLab 2 note also includes an internal four-voice
crossfade which enables smooth legato transitions from one part of a note’s
envelope to another. This crossfade also enhances note-to-note transitions
which are very important in recreating realistic wind instrument sounds.
The output of the sample-playback oscillator is routed to SaxLab 2’s Body
section. The Body section contains a filter which modifies the frequency
spectrum of the oscillator's output. Here the overall tonal characteristics of the
currently loaded SoundSet can be modified.
An important part of the sound of a real acoustic instrument arises from the
real-time modulation of its sound. SaxLab 2 enables the user to modulate its
sound using three sources: envelopes, LFOs (Low Frequency Oscillators) and
MIDI controllers.
SaxLab 2’s Amplitude Envelope section is used to control the way that the
instrument’s amplitude varies over time and includes controls for Attack Time,
Decay Time and Release Time. A second modulation source is SaxLab’s LFO
which can be mapped to either or both of the sound’s amplitude and pitch and
so can be used to create either tremolo or vibrato effects. A third modulation
source is real-time MIDI controllers. These can be mapped to numerous
destinations. Examples include MIDI Velocity to the amplitude envelope
depth, Modulation Wheel to LFO depth and MIDI Breath Control to brightness.
Note that for a realistic emulation often the control of SaxLab “Bright” by
Velocity leads to a more realistic performance than using the “Amp” by
Velocity. Actually Velocity should control more of the brightness (“Bright”) and
less of the amplitude (“Amp”).
Another important part of the sound of a real acoustic instrument is that no
two notes are exactly the same. No matter how hard the player may try, each
note is slightly different. Our ears are very sensitive to these differences and
can easily detect when two notes are identical. For this reason, SaxLab 2
incorporates Body, Air and Pitch Deviation controls which introduce small
random variations to the Body filter, the “air” component of the sound, and to
the overall pitch of the note each time a note is triggered.
SaxLab 2’s Effects section contains two effects: Chorus and Reverb. The
Chorus effect can be used to "thicken" a single sound creating the impression
that it contains multiple voices. The Reverb effect is used to create the
impression that the instrument is being played in a real acoustic space.
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The audio outputs of SaxLab 2 are automatically connected to the input of
your host software's mixer. Here you can set the pan position of SaxLab 2's
output. Hopefully, this section has given you a brief overview of how SaxLab 2
works. More detailed information can be found in the following sections.
Main
SaxLab 2’s Main section is located in the middle of the instrument’s Front
Panel. It contains controls for selecting the current Sound Set as well as for
setting the relative levels of the instrument’s three sound layers. It also
contains a MIDI indicator that shows when incoming MIDI Note-on messages
are received.
Sound Set: SaxLab 2’s Sound Set control is used for selecting the current
Sound Set. Each Sound Set is a collection of samples that the instrument
uses to generate sound. Each Sound Set is made up of three layers: the Main
layer, the Air layer and the Keys layer. These three layers are mixed to
produce the instrument’s overall sound. The Sound Set should not be
confused with a Preset. The former is a collection of samples used by the
instrument, while the latter is a “snapshot” of all the instrument’s current
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settings, and an associated Sound Set. As such, many Presets can utilize the
same Sound Set.
Keys: The Keys control sets the volume of the Keys sample layer. This layer
contains the characteristic key “clicks” usually heard in saxophones and
clarinets. Increasing the value of the Keys control makes the Keys layer
louder with respect to the instrument’s other two layers.
VOL (Volume): The VOL (Volume) control sets the volume of the pitched
sample layer. This layer contains the pitched component of the sound.
Increasing the value of the VOL (Volume) control makes the pitched
component of the sound louder with respect to the instrument’s other two
layers.
Air: The Air control sets the volume of the Air sample layer. This layer contains
the breath and “airflow” sounds that are an important part of the sound of a
real wind instrument. Increasing the value of the Air control makes the Air
layer louder with respect to the instrument’s other two layers.
Note: When using “Layered” or “Soft” Sound Sets it is recommended to only
use very low “Air” noise settings since these sets include soft played tones
which are naturally already noisy.
MIDI: The MIDI indicator lights up when any incoming MIDI Note-on
messages are received by SaxLab 2. Clicking and holding down a mouse
button while the cursor is over the MIDI indicator automatically plays a C3
note. The note is turned off when releasing the mouse button.
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Body
SaxLab 2’s Body section is located in the middle of the instrument's Front
Panel above the Main section. The Body section contains a filter with three
controls that allow you to shape the overall timbre of the instrument.
RES (Resonance): The RES control is used to set the amount of emphasis
around the filter’s cutoff frequency. Higher settings create a more pronounced
peak in the signal while lower settings produce a flatter response.
FREQ (Frequency): The FREQ control is used to set the frequency at which
the filter begins to take effect. Higher settings produce brighter sounds while
lower settings result in darker sounds.
Bright (Brightness): The Bright control is used to set the brightness of the
instrument’s sound. Higher settings will produce a more strident tone, while
lower settings will produce a softer, cooler sound.
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Tune
SaxLab 2’s Tune section is located on the upper left of the instrument’s Front
Panel. This section consists of four controls: Coarse (Tune), Fine (Tune), the
Tuning Display and Scale.
Coarse (Tune): The Coarse (Tune) control is used to set the overall pitch of
the instrument in semitone steps. Control settings range from -11 semitones
to +11 semitones.
Fine (Tune): The Fine (Tune) control is used to set the overall pitch of the
instrument in cents. A cent is 1/100 of a semitone. Control settings range from
-100 cents (-1 semitone) to +100 cents (+1 semitone).
Note that the overall pitch of the instrument can be raised or lowered by one
octave using a combination of the Coarse Tune control and the Fine Tune
control.
Also note that the Coarse Tune control and the Fine Tune control are used to
set the root note of the current scale. The controls transpose the scale’s
starting pitch to the selected pitch. Remember that if you use tunings other
than Equal Temperament, the overall pitch of the instrument must be set to
the root note of the key in which you wish to work. Otherwise, the notes of the
scale will not have the correct pitch.
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Tuning Display: The Tuning Display is located to the right to the two tuning
controls. It displays the instrument’s current tuning in semitones and cents.
For example, a setting of “+4.79” means that the instrument is currently tuned
4 semitones and 79 cents sharp of its default setting.
Scale: The Scale control is used to set the Micto Tuning (TUN) file that
SaxLab 2 uses. The TUN file is a list of pitches that the instrument uses to
determine the pitch at which it plays back samples. Most Western music uses
a pitch system called Equal Temperament in which the smallest interval
between two adjacent notes is defined by the ratio 1:1.05946. For example,
A4 has a frequency of 440 Hz. In this case, A#4 (the next highest note
available on a keyboard) has a frequency of 440 x 1.05946 which equal 466.2
Hz.
SaxLab 2 comes with a wide selection of different TUN files. For more about
TUN files please see Appendix A: Using TUN Files.
Presets
SaxLab 2’s Presets section is located on the upper right of the instrument’s
Front Panel. The Preset section contains the Preset Display and File Browser
as well as the MIDI Learn ECS.
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Preset Display/File Browser
Preset Display/File Browser: The Preset Display consists of two displays. The
upper one shows the Current Bank and the lower one shows the Current
Preset. Whenever a new Preset is loaded using the file controls found below
these displays, the Current Preset display is updated with the name of the
new Preset and the Current Bank is updated with the name of the directory
that contains the new Preset.
By default the File Browser points to the factory presets installed with SaxLab
2. Presets can be changed in three different ways. A new Preset can be
loaded using the file controls, which work by clicking the Prev/Next (“arrow”)
buttons located below the Current Preset display. Alternatively, the desired
Preset can be selected directly from the Current Preset display, which turns
into a menu when it is clicked. A Preset can also be changed by sending a
MIDI program change command to the instrument.
The Current Bank can be changed by loading a Preset from a different
directory or by selecting the desired location from the Current Bank display,
which turns into a menu when it is clicked.
The File Controls located to the right of the Prev/Next (“arrow”) buttons are
used for all File-related operations. The Load button opens a dialog that lets a
previously saved Preset be selected for loading. The Save button allows the
current settings to be saved as a new Preset.
The settings of all sections are saved with the Preset. SaxLab 2 loads and
saves all of its Presets directly to hard disk so your computer's RAM does not
limit the number of available Presets. Note that when you load a Preset using
the Preset section's controls, the previous Preset is erased so if you want to
keep the previous Preset make sure you save it before loading another one.
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ECS
The ECS (Easy Controller Setup) section makes it simple to control SaxLab 2
from an external MIDI controller (either hardware or software). All you have to
do is switch on the ECS indicator (click it once), select a SaxLab 2 parameter
with the mouse and then send some MIDI messages to the SaxLab 2 from
your MIDI source. That's all there is to it! From now on you can change the
parameter with that controller. In addition to this, more than one controller can
be defined to change a particular parameter. In fact, you can define up to 128
parameter-controller-combinations. This does not depend on the type of
controller you have nor the particular MIDI Control Change messages it
sends. Don't forget to switch off ECS after you have finished using it. To do
this, click the indicator again.
Clicking on the ECS label opens the ECS menu. The menu contains the
following functions: Off, Learn, Clear, Clear All, Save, Rest.Fact. (Restore
Factory Settings). These functions are explained below.
Off: The Off menu item turns off ECS. If ECS is already off then selecting this
menu item has no effect.
Learn: The Learn menu item turns on ECS. Once ECS is on, a target control
can be selected with the mouse. Any MIDI Control Change messages sent to
the instrument will then be routed to the selected control.
Clear: The Clear menu item turns on ECS and prepares the instrument for the
disconnection of previously-assigned MIDI Control Change messages from
their destinations. After selecting the Clear menu item, clicking on a SaxLab 2
control disconnects the previously assigned MIDI controller from the selected
destination. After clearing a SaxLab 2 control, the selected control no longer
receives MIDI Control Change messages.
Clear All: The Clear All menu item disconnects all previously-assigned MIDI
Control Change messages from their destinations. After clearing all SaxLab 2
controls, no control receives MIDI Control Change messages.
Load: The Load menu item enables a previously saved MIDI controller routing
configuration to be restored.
Save: The Save menu item enables the current MIDI controller routing
configuration to be saved.
Rest.Fact: The Rest.Fact (Restore Factory Settings) restores SaxLab 2's
default ECS settings, which is equivalent to Clear All.
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Amplitude Envelope
SaxLab 2’s Envelope section is located on the middle left of the instrument’s
Front Panel. Because SaxLab 2 uses samples for playback, the envelope of
the sound it produces is determined to a large extent by the envelope of the
sample that is currently being played. This can be limiting, as it precludes
real-time control of the instrument’s amplitude. In order to make the
instrument more responsive to the player, SaxLab 2 contains an Envelope
section which incorporates four controls: ENH (Enhance), A (Attack), D
(Decay) and R (Release).
ENH (Enhance): The ENH (Enhance) control setting determines the degree to
which the first few milliseconds of a note's amplitude envelope are amplified.
The ENH (Enhance) control can be used to create a prominent attack
transient, so that the "piff" sound at the beginning of a note is emphasised.
This is very useful for creating rhythmic accents.
A (Attack): The A (Attack) control setting determines the length of time it takes
for the amplitude envelope to reach the full envelope depth. For example, if
the A (Attack) slider is set to 0, the sound’s amplitude will move from zero to
full volume within the shortest possible amount of time.
D (Decay): The D (Decay) control setting determines the length of time that
the amplitude envelope takes to move from the Attack peak level to the
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Sustain level. Setting the D (Decay) slider to higher values increases the time
taken for the sound’s amplitude to move from full volume to the sustain level.
R (Release): The R (Release) control is used to set the length of time that the
amplitude envelope takes to move from the current level to silence after the
key is released. Setting the R (Release) slider to higher values increases the
time taken for the sound’s amplitude to decrease to zero.
Note: The Sustain level is is reached at the end of the Decay phase and is
fixed at 50% of the maximum level (that is reached at the end of the Attack
phase).
The time range of A and R are actually useful only for special effects, as a real
sax doesn't have a meaningful release time and the attack time is controlled in
realtime by the player. So for a good emulation these parameters should stay
close to zero (bottom of the fader), but not zero. For a slow attack the attack
time (or the main volume) should be controlled by a MIDI controller (see
section ECS).
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Performance
The Performance section is located on the middle right of SaxLab 2’s Front
Panel. The Performance section features the following controls:
•
Scoop (Amount),
•
PB- (Pitch Bend Down Amount) with Display,
•
PB+ (Pitch Bend Up Amount) with Display,
•
AMP (Amplitude) Depth, Control Source and Control Response
Curve,
•
BRI (Brightness) Depth, Control Source, and Control Response
Curve
•
REV (Reverb) Depth, Control Source and Control Response Curve
•
GRO (Growl) Depth, Control Source, Control Response Curve,
•
Maximum Depth and Deviation,
•
CT (Crossfade Time) and
•
Monomode.
Scoop (Amount): This control is used to set the amount of time it takes to
move from a lower pitch to the pitch of the note that is actually played.
Increasing the value of the Scoop control increases the time taken for the
pitch to move from the lower pitch to the note that is actually played. Scoop
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can be thought of as an auto-bend that is applied at the onset of a note.
Scoop is not applied to notes that are played legato. The scoop is a style
mode used in sax playing and it]s often used in Jazz and Rock since it's easy
with sax and clarinet to initially pitch the note lower than intended.
PB- (Pitch Bend Down Amount): This slider is used to set SaxLab 2’s
response to incoming MIDI Pitch Bend messages that are below the midpoint
of the MIDI controller's Pitch Wheel. The slider can be adjusted over a range
of 0 to 12 semitones. The current value of the PB- control is shown in the
Pitch Bend Down Range Display which is located above the slider. Note that
downward Pitch Bend only operates in the lower half of the Pitch Wheel’s
range. Increasing the value of the PB- (Pitch Bend Down Amount) control will
increase the range of the lower half of the instrument’s Pitch Wheel.
PB+ (Pitch Bend Up Amount): This slider is used to set SaxLab 2’s response
to incoming MIDI Pitch Bend messages that are above the midpoint of the
MIDI controller's Pitch Wheel. The slider can be adjusted over a range of 0 to
12 semitones. The current value of the PB+ control is shown in the Pitch Bend
Up Range Display which is located above the slider. Note that upward Pitch
Bend only operates in the upper half of the Pitch Wheel’s range. Increasing
the value of the PB+ (Pitch Bend Up Amount) control will increase the range
of the upper half of the instrument’s Pitch Wheel.
Note: Scoop and Pitch bend ranges must not be abused for a realistic Sax
sound, best is to use small values so that the formants of the sax are
preserved.
AMP (Amplitude Control Depth): This control sets the degree to which the
currently selected control source (see below) affects the instrument's
amplitude which is set in the Main section. Increasing the value of this control
makes the instrument more responsive to changes in the incoming MIDI data.
Amplitude Control Source: This control is used to set the type of MIDI control
change message that controls the instrument’s AMP (Amplitude Control
Depth) setting. Three options are available: Velo (Velocity), BC (Breath
Controller) and AT (Aftertouch). Only one type of MIDI Control Change
message can be used at a time .
Amplitude Control Response Curve: This setting determines how the AMP
(Amplitude Control Depth) control responds to incoming MIDI messages
selected with the Amplitude Control Source. The control is continuously
variable and ranges from inverse logarithmic through linear to logarithmic. The
chosen shape works as a “transfer function” which scales the incoming MIDI
messages so that their “effective working range” is changed. This can be used
to make the instrument more sensitive to MIDI control change messages in a
particular portion of the controller's range. For example, in the case of a
logarithmic curve, the effective working range is scaled upwards so that
changes in the upper portion of the controller's range have most effect on the
destination. A linear curve passes the MIDI messages unchanged.
Bright (Brightness Depth): The Bright control sets the degree to which the
currently selected control source (see below) affects the Body section’s Bright
(Brightness Depth) control. This in turn sets the overall brightness of the
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instrument’s sound. Increasing the value of this control makes the instrument
more responsive to changes in the incoming MIDI data.
Brightness Control Source: This control is used to set the type of MIDI control
change message that controls the instrument’s Bright (Brightness) setting.
Three options are available: Velo (Velocity), BC (Breath Controller) and AT
(Aftertouch). Only one type of MIDI control change message can be used at a
time.
Brightness Control Response Curve: This setting determines how the Bright
control responds to incoming MIDI messages selected with the Brightness
Control Source. The control is continuously variable and ranges from inverse
logarithmic through linear to logarithmic. The chosen shape works as a
“transfer function” which scales the incoming MIDI messages so that their
“effective working range” is changed. This can be used to make the
instrument more sensitive to MIDI control change messages in a particular
portion of the controller's range. For example, in the case of a logarithmic
curve, the effective working range is scaled upwards so that changes in the
upper portion of the controller's range have most effect on the destination. A
linear curve passes the MIDI messages unchanged.
REV (Reverb Mix): The Rev control sets the degree to which the currently
selected control source (see below) affects the Reverb section’s Mix control.
This in turn sets the overall mix of the instrument’s wet and dry sound.
Increasing the value of this control makes the instrument more responsive to
changes in the incoming MIDI data.
Reverb Mix Control Source: The Reverb Mix Control Source is used to set the
type of MIDI control change message that controls the instrument’s Reverb
Mix setting. Three options are available: Velo (Velocity), BC (Breath
Controller) and AT (Aftertouch). Only one type of MIDI control change
message can be used at a time.
Reverb Control Response Curve: This setting determines how the Reverb Mix
control responds to incoming MIDI messages selected with the Reverb Mix
Control Source. The control is continuously variable and ranges from inverse
logarithmic through linear to logarithmic. The chosen shape works as a
“transfer function” which scales the incoming MIDI messages so that their
“effective working range” is changed. This can be used to make the
instrument more sensitive to MIDI control change messages in a particular
portion of the controller's range. For example, in the case of a logarithmic
curve, the effective working range is scaled upwards so that changes in the
upper portion of the controller's range have most effect on the destination. A
linear curve passes the MIDI messages unchanged.
A characteristic component of a saxophone's sound is the “growl” that is
created when the player sings or hums a note while playing the instrument.
Depending upon the circumstances, the hummed note may be harmonically
related to the note played, or it may be completely unrelated. SaxLab 2
enables the user to add “growl” to the instrument's sound via the Growl
controls in the Performance section.
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GRO (Growl Depth): This control sets the degree to which the currently
selected control source (see below) effects the presence of the “growl” effect
in the instrument's sound. Increasing the value of this control makes the
instrument more responsive to changes in the incoming MIDI data.
Growl Control Source: The Growl Control Source is used to set the type of
MIDI control change message that controls the “growl” component of the
instrument’s sound. Three options are available: Velo (Velocity), BC (Breath
Controller) and AT (Aftertouch). Only one type of MIDI control change
message can be used at a time.
Growl Control Response Curve: This setting workl just like already described
for the Amp, Brightness and Reverb Control Response Curve.
Growl Maximum Depth: The Growl Maximum Depth control sets the maximum
volume level of the growl component of the instrument's sound. Note that this
control works in conjunction with the Growl Deviation control (described
below). If the Growl Deviation control is set to 0, then the level of the growl
component of the instrument's sound is determined by the setting of the Growl
Maximum Depth control. If the Growl Deviation control is set to a value other
than 0, then the level of the growl component of the instrument's sound will
randomly vary between 0 and the current value of the Growl Deviation control
for each note that is played.
DEV (Growl Deviation): The DEV (Growl Deviation) control is used to set a
degree of randomisation in the “growl” component of the instrument's sound.
Increasing the DEV (Growl Deviation) control will introduce more random
variation in the amount and tone of the growl component of the instrument's
sound from note to note.
Three MIDI controllers are available for modulating SaxLab 2’s various
Performance parameters. These are: Velo (Velocity), BC (Breath Controller)
and AT (Aftertouch). Each controller works in a slightly different way. Note that
only one type of MIDI control change message can be used for each
Performance Control at a time.
Velo (Velocity): All MIDI controllers have the ability to trigger a note. This is
usually done by transmitting a MIDI Note-On message. Note-On messages
consist of three bytes: a Status byte and two Data bytes. The second Data
byte contains the velocity at which the key was pressed. In most cases, key
velocity is used to determine the loudness of the synthesized sound. Note that
only one Note-On message is transmitted for each note that is played.
BC (Breath Controller): MIDI Wind controllers typically transmit breath
pressure information as MIDI Breath Control messages. Breath Controller
messages consist of three bytes: a Status byte and two Data bytes. The
message's first Data byte defines the type of Control Change message (in this
case, Breath Control), which has a value of 0x02. The second Data byte
determines the current output value of the Breath Controller.
Note that new Breath Controller messages are transmitted whenever the
controller's input changes, so that Breath Controller messages can vary over
Page 20
the duration of a note. Also note that MIDI keyboards normally do not transmit
Breath Controller messages, however it is usually possible to reassign the
output of other MIDI controllers (such as the Mod Wheel) so that they transmit
MIDI Breath Controller messages.
AT (Aftertouch): Many types of MIDI keyboard have the ability to detect how
much pressure is applied to a key. This pressure can be varied continuously
as the note is sounding. MIDI messages that transmit the current value of the
key pressure are called Aftertouch messages.
Aftertouch messages consist of a Status byte and two Data bytes. The
message's first Data byte defines the note value while the second Data byte
determines the current Aftertouch value. Aftertouch values can range from 0
to 127. Note that not all MIDI keyboards transmit Aftertouch messages.
however it is usually possible to reassign the output of other controllers so
that they transmit MIDI Aftertouch messages.
In order to produce realistic wind instrument sounds it is important to be able
to control the way that notes are triggered and connected to subsequent
notes. On a real wind instrument the player can choose to play each note
separately, or to connect notes to the ones that follow. If each note is played
separately, then each has its own attack portion. If two or more notes are
played in a “legato” (connected) manner then only the first note will have an
attack portion. This can be imitated on a keyboard by using a combination of
playing technique and SaxLab 2’s Monomode setting. Three modes are
available: Leg (Legato), Alt (Alternate) and Ret (Retrigger). With respect to
these three settings, the key point to understand is the difference between
playing keyboard notes that overlap and playing notes that are detached.
First, let’s consider SaxLab 2’s Ret (Retrigger) mode. In this mode, no matter
how you play keyboard notes (legato or detached), each note will have an
attack portion. In this case, each note will sound as a complete and separate
note.
Next, let’s consider SaxLab 2’s Leg (Legato) mode. In this case, if two or more
notes are played in a “legato” (connected) manner, where the following note is
played before the previous note is released, then only the first note will have
an attack portion. Notes following the initial note will be automatically
connected to the preceding note. However, notes that are played in a
detached manner will still have an attack portion. In this way, the keyboard
playing style that is used determines how notes play back.
Alt (Alternate) mode combines the two modes described above. In this case
every second legato note has its own attack portion regardless of how it is
played. Notes that are played in a detached manner will still have their own
attack portion.
The differences between Leg (Legato) and Ret (Retrigger) modes are
illustrated in the pictures shown below. The main difference between Leg
(Legato) mode and (Ret) Retrigger mode is in the way the samples are
retriggered. In Leg (Legato) mode, the instrument will only play the attack
portion of the sound if the previous key has been released before the next key
Page 21
is played. In Ret (Retrigger) mode, the instrument starts a new envelope each
time a note is played. In all modes, the envelope retriggers if notes are
separated.
Note: For Alternate and Retrigger a small amount of “ENH” (Enhance) might
be most effective for realistic results.
In SaxLab 2’s Alt (Alternate) mode, sample triggering alternates between Leg
(Legato) mode and Ret (Retrigger) mode for each note in a legato sequence.
Shown below is the same sequence of notes played three times, each time
with a different Monomode setting. In each case arrows mark where the
envelopes start for each note.
Page 22
CT (Crossfade Time): The CT (Crossfade Time) control is used to set the
length of time taken to move from the pitch of the previous note to that of the
note currently being played. However, the CT (Crossfade Time) is more than
just a conventional portamento control. When the CT (Crossfade Time) is set
to zero, the length of the crossfade time is the same for all notes regardless of
their duration. As the value of the CT (Crossfade Time) is increased, the
portamento time becomes adaptive and is determined by the duration of the
previous notes. This means that a note with a long duration will have a
correspondingly long crossfade time. A note with a shorter duration will have a
shorter crossfade time. This is useful for playing passages that contain notes
Page 23
with a mixture of different durations. For example, say that SaxLab 2's
crossfade time was constant and set to a long duration. In the case of notes
with a short duration this could mean that there might not be enough time for
the pitch of the instrument to reach the current note's pitch before the next
note was played. SaxLab 2's adaptive crossfade time means that the
crossfade time changes according to the duration of the notes being played.
In effect, it provides adaptive note articulation so that the pitch of the target
note is always reached. Note that the CT (Crossfade Time) only operates
when the instrument is in Legato mode.
Note: Usually a setting of 30 should be a good setting, however, its possible to
customize this value to the playing style and taste.
Page 24
LFO
SaxLab 2’s LFO (Low Frequency Oscillator) section is located on the lower
left of the instrument’s Front Panel. The LFO section contains nine controls for
setting various parameters of the instrument’s LFO. The controls include: DEL
(Delay), ATK (Attack), Rate, Pitch, AMP, CTD (Controller Depth) and
Controller Source. SaxLab 2’s LFO works slightly differently to other
synthesizer LFOs so you may want to read the following section carefully.
DEL (Delay Time): The DEL (Delay Time) control is used to set a time delay
between the note onset and when the LFO begins to modulate the
instrument’s output. If this is used in conjunction with the ATK (Attack Time)
control then the LFO's attack envelope will not begin until the delay time has
elapsed.
ATK (Attack Time): The ATK (Attack Time) control is used to set the amount of
time taken for the LFO to move from zero to the current value of the Pitch and
Amp controls.
Rate: The LFO’s Rate control functions differently depending upon whether or
not a MIDI Controller Source (see below) is selected. If a MIDI Controller
Source is not currently selected then the Rate control sets a default oscillator
frequency for the LFO. When a MIDI controller is selected as a Controller
Source the Rate control sets a minimum rate for the LFO. In this case, the
Page 25
maximum LFO Rate is set by the combined values of the Rate and the CTD
(Controller Depth) controls.
Pitch: The LFO’s Pitch control is used to set the maximum depth to which
SaxLab’s overall pitch is modulated by the LFO. This can be used to create
vibrato effects.
AMP (Amplitude): The LFO’s AMP (Amplitude) control is used to set the
maximum depth to which SaxLab’s overall amplitude is modulated by the
LFO. This can be used to create tremolo effects.
CTD (Controller Depth): The CTD (Controller Depth) control sets the degree
to which the currently selected MIDI controller (see below) affects the LFO’s
settings. Note that the setting of this control can also influence the LFO rate.
Controller Source: Three MIDI controllers are available for modulating the
LFO’s various parameters. These are: AT (Aftertouch), PW (Pitch Wheel) and
MW (Modulation Wheel). Each works in a slightly different way. Note that only
one controller can be selected at a time.
AT (Aftertouch) increases the LFO’s modulation frequency starting from the
current value of the Rate control up to the combined values of the Rate and
CTD (Controller Depth) controls using MIDI Aftertouch messages. The
maximum available rate is set by a combination of the LFO Rate setting and
the CTD (Controller Depth) setting. Note that Aftertouch can only increase the
LFO rate from the value set in the Rate parameter. It cannot be used to
decrease the LFO rate below the setting of the Rate control.
PW (Pitch Wheel) increases the LFO’s modulation frequency starting from the
current value of the Rate control up to the combined values of the Rate and
CTD (Controller Depth) controls using Pitch Bend Control Change messages.
The maximum available rate is set by a combination of the LFO Rate setting
and the CTD (Controller Depth) setting. Note that the Pitch Bend setting can
only increase the LFO rate from the value set in the Rate parameter. It cannot
be used to decrease the LFO rate below the setting of the Rate control. Also
note that the PW (Pitch Wheel) operates from its default “central” position to
its maximum value. The lower half of its range has no effect on the LFO rate
(but it still affects the instrument's pitch, which is useful since saxophones
usually bend to lower pitches).
MW (Modulation Wheel) increases the LFO’s modulation frequency starting
from the current value of the Rate control up to the combined values of the
Rate and CTD (Controller Depth) controls using Modulation Wheel Control
Change messages. The maximum available rate is set by a combination of
the LFO Rate setting and the CTD (Controller Depth) setting. Note that the
Modulation Wheel setting can only increase the LFO rate starting from the
value set in the Rate parameter. It cannot be used to decrease the LFO rate
below the setting of the Rate control. However, if the MW (Modulation Wheel)
is set to zero, then the Pitch and AMP values will be scaled to zero, effectively
fading out the LFO so that it no longer modulates the instrument’s output.
Even though the LFO Rate has not decreased below the current Rate value,
the effect of the LFO is no longer heard. In most cases, this controller should
be used with the ATK (Attack Time) and the DEL (Delay Time) set to zero.
Page 26
The LFO’s MIDI controller implementation may at first seem complicated
however its operation has been designed with the following scenario in mind.
The user first sets the balance between the Pitch and AMP controls with the
Pitch and AMP controls. Then the default LFO frequency is set with the Rate
control. If the user then selects the Modulation Wheel as the Controller
Source they can bring in the LFO, increase its modulation depth,
(proportionally for Pitch and AMP), while accelerating the LFO rate from the
setting of the Rate control to the maximum value set by the combination of the
Rate control and the CTD (Controller Depth). This is a more realistic way to
create vibrato, starting from zero, and increasing the rate and depth, until the
intended level of intensity is reached. In this way, the user can quickly move
from different amounts of vibrato at any speed they desire.
Deviation
SaxLab 2’s Deviation section is located in the lower middle of the instrument’s
Front Panel. An important part of the sound of a real acoustic instrument is
that no two notes are exactly the same. No matter how hard the player may
try, each note is slightly different. Our ears are very sensitive to these
differences and can usually detect when two notes are identical. For this
reason, SaxLab incorporates Body, Air and Pitch Deviation controls which
introduce small random variations to the Body filter, the “air” layer of the
sound, and to the overall pitch of a note each time it is triggered.
Page 27
Body (Deviation Amount): The Body (Deviation Amount) control is used to set
a degree of randomisation in the instrument’s Body filter for each note that is
played back. Increasing the Body (Deviation Amount) control will introduce
more random timbre variation from note to note in the sound of the
instrument.
Air (Deviation Amount): The Air (Deviation Amount) control is used to set a
degree of randomisation in the instrument’s “air” layer for each note that is
played back. Increasing the Air (Deviation Amount) control will introduce more
random timbre variation from note to note in the sound of the instrument.
Pitch (Deviation Amount): The Pitch (Deviation Amount) control is used to set
a degree of randomisation in the instrument’s overall pitch for each note that
is played back. Increasing the Pitch (Deviation Amount) control will introduce
more random variation from note to note in the instrument’s overall pitch.
Effects
SaxLab 2’s FX (Effects) section is located on the lower right of the
instrument’s Front Panel. Two internal effects are available: Chorus and
Reverb.
Page 28
Chorus
SaxLab 2’s Chorus effect can be used to "thicken" the instrument’s
monophonic output creating the impression that it contains multiple voices.
SaxLab 2’s Chorus features controls for: Mix, DPTH (Depth) and SPD
(Speed). Also note that the output of the Chorus effect is stereo.
The Chorus effect is switched on and off by clicking on the LED to the right of
the “Chorus” label.
Mix: The Mix control is used to set the balance between the processed "wet"
signal and the original unprocessed "dry" signal.
DPTH (Depth): The DPTH (Depth) control is used to set the amount that the
effect modulates the original signal. By increasing the DPTH (Depth) slider a
more detuned sound is produced.
SPD (Speed): The SPD (Speed) control sets the rate at which the signal is
modulated.
Reverb
The Reverb effect is used to add ambience to sounds. It features controls for
Mix, Space and DAMP (Damping).
The Reverb effect is switched on and off by clicking on the LED to the right of
the “Reverb” label.
Mix: The Mix control allows you to set the balance between the processed
"wet" signal and the original unprocessed "dry" signal.
Space: The Space control is used to set the size of the simulated room. The
size of the “space” varies from a small chamber up to a large hall.
DAMP (Damping): The simulated room's wall materials can be adjusted with
the DAMP (Damping) control. This parameter ranges from practically loss-free
reflecting walls (no damping) up to very absorbent walls (full damping). In
practical terms, the amount of damping determines the amount of high
frequency sound components that are contained in the processed signal; the
higher the DAMP (Damping) setting, the less high frequencies are contained
in the processed signal.
Page 29
Rear Panel
SaxLab 2’s Rear Panel is accessed by clicking on the SaxLab 2 logo on the
instrument's Front Panel. The Rear Panel contains a control for the path to the
library, an edit box which is used for registering the instrument and a display
that shows the version of the instrument.
Library: The Library Path is located on the upper left of the instrument's Rear
Panel. Usually it points to where the library have been installed, however, if
you want to move the library to a different location you can do this and use
this control to make the new location available to SaxLab. After clicking the
folder icon a file dialog opens and allows you to browse to the library.
Attention: You cannot select the folder directly, you need to locate the library,
then open the “Alto Layers” folder and open the “sax.sxlbsnd” file in it.
After adjusting the path to the library you need to restart SaxLab, that is to
unload it completely and load it again.
Serial Number: The Serial Number edit box is located on the upper left of the
instrument's Rear Panel. The Serial Number edit box is used to register the
instrument. Note that before entering a valid serial number, the Serial Number
edit box reads “Enter here”. After a valid serial number has been entered the
Serial Number edit box reads “Valid”.
Version Number: The Version Number display is located on the upper right of
the instrument's Rear Panel. It shows the version of the instrument.
Clicking on the SaxLab 2 logo in the middle of the Rear Panel returns you to
the Front Panel.
Page 30
Registration
After you've installed and opened the full version of SaxLab 2, go to the
instrument's Rear Panel (see the Rear Panel section of this manual for more
information about the instrument's Rear Panel). The Serial Number edit box
will read "Enter here". Enter the serial number you have received into the
Serial Number edit box. If the serial number has not been entered or it has
been entered incorrectly, the SaxLab 2 will run in demo mode.
After entering the serial number correctly, the Serial Number edit box displays
the word “Valid” indicating that the instrument is registered. Once registered,
the serial number is no longer displayed on the instrument. Make sure to keep
your serial number in a safe place as you might need it again to register
SaxLab, in example when you bought a new computer.
If you have any questions regarding SaxLab 2's registration process, please
visit our support area at www.linplug.com/support/support.htm.
Support
Should you have any questions or comments regarding the LinPlug SaxLab 2
please contact us via following website:
http://www.linplug.com/Support/support.htm
Page 31
Glossary
Amplifier:
A signal processing device that changes the amplitude, and
hence the loudness, of a signal.
Amplitude:
With respect to sound, the peak amount of variation above and
below atmospheric pressure caused by the compression and
rarefaction components of a sound. Amplitude indicates the
amount of energy in a sound and generally correlates with our
perception of “loudness”. The term can also apply to any signal,
hence the term “Amplitude Envelope” which is used to describe
the way a synthesizer’s loudness varies over time when a note
is played.
Chorus:
The creation of the perception of multiple unison voices from a
single voice.
Crossfade:
The process of mixing two audio signals together by increasing
the amplitude of one as the amplitude of the other is decreased.
Effect:
A signal processing device that changes some aspect of the
input signal. An enormous number of different effect types are
available. These include Chorus (which produces a thickening of
the signal), Delay (adding echoes to the signal) and Distortion
(which changes the shape of the waveform usually adding
overtones).
Envelope:
A time-varying signal used to control the development of another
signal after it has been triggered. Envelopes are most often
used for controlling a signal's amplitude. The shape of the
envelope is determined by the number of control parameters.
Usually four parameters are available: Attack Time, Decay Time,
Sustain Level and Release Time.
Filter:
A signal processing device that suppresses or "filters" out
specific parts of a signal's frequency spectrum. Numerous types
of filter are used in audio synthesis. These include Low Pass,
High Pass, Band Pass and Notch. The tone controls on a stereo
amplifier are one example of an audio filter.
LFO:
An LFO or "Low Frequency Oscillator" is a periodic signal
source (usually below audio frequency range) used to modulate
another signal parameter. An LFO can be used for a variety of
effects including vibrato (by modulating the instrument’s pitch)
and tremolo (by modulating the instrument’s amplitude).
Modulation: The variation of one parameter by another. For example, a
signal’s frequency can be “modulated” by an LFO (Low
Frequency Oscillator) in which case vibrato is produced.
Page 32
Monophonic: Literally, “one voiced.” A monophonic sound contains one voice.
Any musical instrument that can produce only one note at a time
is classed as monophonic.
Multi-sample:A technique used in sample-playback where two or more
samples are used to simulate the way the timbre of a sound
changes with respect to its amplitude. For example, a piano
could be sampled at two different volume levels (“soft” and
“loud”). When the instrument is triggered by a low amplitude
input signal the “soft” sample is played. When the instrument is
triggered by a high amplitude input signal the “loud” sample is
played.
Polyphonic: Literally, “many voiced.” A polyphonic sound contains two or
more voices. Any musical instrument that can produce two or
more notes at a time is classed as polyphonic.
Reverb:
“Reverb” (Reverberation) arises from the way that sound is
reflected by the surfaces found within a room, and causes the
sound to be heard after all sources have ceased. Different
acoustic spaces have different reverberant characteristics, many
of which can be simulated digitally.
Sample:
A recording of a short portion of an audio signal.
Timbre:
Timbre is notoriously difficult to define. Having said that, timbre
is usually defined as the characteristic tone colour of a sound.
Timbre is what distinguishes two notes played at the same pitch
and amplitude on different musical instruments.
Page 33
MIDI Implementation Chart
Product:
Manufacturer
Function
Basic Channel
Default
Changed
SaxLab
Version 2.x Date: 18.Jan 2008
LinPlug Virtual Instruments GmbH
Transmitted Recognized Remarks
no
no
no
no
no
no
Omni
no
no
no
yes
no
Velocity
Note On
Note Off
no
no
yes
no
Aftertouch
Poly (Key)
Mono (Channel)
no
no
no
yes
Pitch Bend
no
yes
Control Change
no
yes
Program Change
no
yes
System Exclusive
no
no
System Common
Song Position
Song Select
Tune Request
no
no
no
no
no
no
System Realtime
Clock
Commands
no
no
no
no
Aux Messages
Local On/Off
All Notes Off
Active Sensing
System Reset
no
no
no
no
no
yes
no
no
Mode
Default
Changed
Note Number
True Voice
Page 34
Appendix A: Using TUN Files
By Jacky Ligon
About Microtuning
Microtuning, or "microtonality" are methods for tuning musical instruments
whereby musicians may explore and compose with ethnic, historical and
contemporary tuning-systems. Microtuning musical instruments allows one to
use scales which may have pitches lying between the notes of our familiar
Western 12 tone scale. These pitches which are found in the 'cracks' of 12
Tone Equal Temperament are one of the things that give musics of Bali, India,
Africa, Thailand, Turkey and the Middle East (to name but a few) a special
international flavor, but is something that is of immeasurable value to the
contemporary acoustic and electronic composer, who may require a more
broad palette of musical pitches for their music.
The quest for creating beautiful and musically useful tuning-systems has been
an unending process of discovery and debate amongst musical theorists,
mathematicians, physicists and musicians going back to early history. Quite
often the reasons for microtuning instruments may involve improving the
consonant intervals of a tuning-system for sweeter sounding harmonies, as
well as offering wider variety of choices for melody. "Microtuning" an
instrument can sometimes mean there may be less or more than 12 tones in
an octave, or even that the octave itself may be stretched or compressed.
Microtuning is a vast topic, rich with lore, music and infinity of musical
possibilities for the sonic explorer.
Creating TUN Microtuning Files with SCALA
Scala is a freeware utility developed by Manuel Op de Coul in the
Netherlands, which can be used for the creation and analysis of historical,
ethnic and contemporary microtunings. A powerful capability of Scala is that it
enables the user to create the proprietary tuning data required for microtuning
a wide range of hardware and software synthesizers and samplers.
Scala may be used to create the TUN format microtuning-files needed to
explore microtunings with this instrument.
The Scala home page is http://www.xs4all.nl/~huygensf/scala/
Specifying the Reference Frequency of a Microtuning
One of the powerful capabilities of the TUN file format and Scala, is the ability
to specify the pitch and midi note which will be the reference pitch for the
microtuning in use. This becomes a very important consideration when one is
using a number of different synthesizers and wishes to keep them in tune with
a given base frequency. It is very common for one to specify a chosen concert
pitch such as A440 Hz or C261.6256 Hz as a reference for a microtuning,
Page 35
however, the flexibility of the TUN format and Scala enables one to specify
this frequency arbitrarily. In Scala this reference is called Map Frequency.
As well as being able to specify the Map Frequency, one can also specify a
central midi-note, which will become the starting point for the microtuning in
use. Being able to specify a particular midi-note on the controller, provides a
way to map a microtuning beginning on any desired midi key, making it easier
to navigate the keyboard when there may be more or less than 12 tones per
octave, or where one may desire to have the notes of a tuning fall on certain
physical keys.
Important Note
When one uses a TUN microtuning file with this software synthesizer, the
above specified mapping properties will override the Master Tuning reference.
Normally when one is using the default 12 Tone Equal Tempered Scale, the
Master Tuning will be used to make fine pitch adjustments around the
standard concert pitch of A440 Hz, but when one has specified another pitch
base for a microtuning when the TUN file is created in Scala, such as
C261.6256 Hz, the data in the TUN microtuning-file will provide a new pitch
reference.
Page 36

SaxLab Manual

Transcription

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